Get 120 stars and talk to him and he will say something then you can use him!
When selecting your saved game with A, hold L and R buttons. You will play as Luigi.
Because it was part of the plot? Why did you ask? It happens in Mario Galaxy though not Mario DS
Luigi is not in super Mario 64 on the Nintendo 64, that was a rumor. However, on the ds version you can play as him along with Wario and Yoshi.
Super Luigi Galaxy isn't a real game but in both Super Mario Galaxy and Super Mario Galaxy 2 you can unlock Luigi and play him.
No, there is no such game as "Super Luigi Galaxy," period. That's just a nickname for when you play Super Mario Galaxy, for the Wii, as Luigi.
If you get 120 stars then you can play with luigi. And then you need to find the 120 stars again but then with luigi!
No you can't play as Princess Daisy in Super Mario Galaxy, but you can play as Rosalina & Luigi.
Select luigi then exit select again and there u go
Yes, You can play as Luigi in Super Mario Galaxy 1 & 2. In Super Mario Galaxy 1, however, you need to really want him. He'll only be playable after collecting 120 stars with Mario (Double what's needed to beat the game).
No, but you can play as Luigi, when you get 120 stars
Yes, Luigi is playable in Super Mario Galaxy. You unlock him after getting all 120 stars as Mario.
Mario Luigi (Beat the Game)